iOS入门之UIButton／ViewController／UIImage

UIButton
 按钮

UIButton * bt1=[UIButton buttonWithType:UIButtonTypeRoundedRect];
[bt1 setTitle:@"ok" forState:UIControlStateNormal];
[window addSubview:bt1];
对象                委托对象                             委托方法 
                                               对象事件
[bt1 addTarget:self action:@selector(doclick) forControlEvents:UIControlEventTouchUpInside]；

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在窗口中添加视图控制器

    self.m_rootViewCtl=[[MyViewControlleralloc]initWithNibName:nilbundle:nil];
    self.window.rootViewController=m_rootViewCtl;相当于－》
[self.windowaddSubview:m_rootViewCtl.view];

    [self.windowmakeKeyAndVisible];

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添加图片

self->m_img01=[UIImage imageNamed:@"rank_icon_7.png"];

self->m_img02=[UIImage imageNamed:@"rank_icon_8"];

    

m_im01=[[UIImageView alloc]initWithImage:self->m_img01];／／分配内存空间

m_im01.frame = CGRectMake(60, 100, 80, 80);／／设置坐标

m_im01.userInteractionEnabled = YES;

[self.view addSubview:m_im01];